diff --git a/README.md b/README.md
index f74c232..0ba9e31 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,16 @@ Below are screenshots of the provided Grafana dashboards (found in the **doc/**
 
 ## Notes
 
-### InfluxDB
+### Start InfluxDB and Grafana at boot on RedHat 7+
+
+    systemctl enable influxdb
+    systemctl start influxdb
+
+    systemctl enable grafana-server
+    systemctl start grafana-server
+
+
+### InfluxDB Retention Policy
 
 Per default the *hmci* influx database has no retention policy, so data will be kept forever. It is recommended to set a retention policy, which is shown below.
 
diff --git a/build.gradle b/build.gradle
index 4332656..f0bdce6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,22 +16,20 @@ repositories {
 }
 
 dependencies {
-    annotationProcessor 'info.picocli:picocli-codegen:4.5.2'
-    implementation 'info.picocli:picocli:4.5.2'
+    annotationProcessor 'info.picocli:picocli-codegen:4.6.0'
+    implementation 'info.picocli:picocli:4.6.0'
     implementation 'org.jsoup:jsoup:1.13.1'
     implementation 'com.squareup.okhttp3:okhttp:4.9.0'
     implementation 'com.squareup.moshi:moshi:1.11.0'
     implementation 'com.serjltt.moshi:moshi-lazy-adapters:2.2'
     implementation 'org.tomlj:tomlj:1.0.0'
     implementation 'org.influxdb:influxdb-java:2.21'
-    implementation 'org.slf4j:slf4j-api:1.7.+'
-    runtimeOnly 'ch.qos.logback:logback-classic:1.+'
+    implementation 'org.slf4j:slf4j-api:1.7.30'
+    runtimeOnly 'org.slf4j:slf4j-simple:1.7.30'
 
     testImplementation('org.spockframework:spock-core:2.0-M4-groovy-3.0')
     testImplementation('com.squareup.okhttp3:mockwebserver:4.9.0')
     testImplementation("org.slf4j:slf4j-simple:1.7.+")
-    //implementation platform('org.testcontainers:testcontainers-bom:1.14.3') //import bom
-    //testCompile "org.testcontainers:influxdb:1.14.3"
 }
 
 application {
@@ -114,6 +112,7 @@ jar {
             'Build-Version'  : versioning.info.tag ?: (versioning.info.branch + "-" + versioning.info.build),
             'Build-Revision' : versioning.info.commit,
             'Build-Timestamp': new Date().format("yyyy-MM-dd'T'HH:mm:ss.SSSZ").toString(),
+            'Add-Opens'      : 'java.base/java.lang.invoke' // To ignore "Illegal reflective access by retrofit2.Platform" warnings
         )
     }
 }
diff --git a/gradle.properties b/gradle.properties
index 09e0177..1acfe4d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 id            = hmci
 group         = biz.nellemann.hmci
-version       = 0.2.7
+version       = 1.0.1
diff --git a/src/main/java/biz/nellemann/hmci/InfluxClient.java b/src/main/java/biz/nellemann/hmci/InfluxClient.java
index b5c2e48..07be409 100644
--- a/src/main/java/biz/nellemann/hmci/InfluxClient.java
+++ b/src/main/java/biz/nellemann/hmci/InfluxClient.java
@@ -30,6 +30,8 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
+import static java.lang.Thread.sleep;
+
 class InfluxClient {
 
     private final static Logger log = LoggerFactory.getLogger(InfluxClient.class);
@@ -57,20 +59,33 @@ class InfluxClient {
             return;
         }
 
-        try {
-            log.debug("Connecting to InfluxDB - " + url);
-            influxDB = InfluxDBFactory.connect(url, username, password);
-            createDatabase();
+        boolean connected = false;
+        int errors = 0;
 
-            // Enable batch writes to get better performance.
-            BatchOptions options = BatchOptions.DEFAULTS.actions(1000).flushDuration(5000).precision(TimeUnit.SECONDS);
-            influxDB.enableBatch(options);
-            batchPoints = BatchPoints.database(database).precision(TimeUnit.SECONDS).build();
+        do {
+            try {
+                log.debug("Connecting to InfluxDB - " + url);
+                influxDB = InfluxDBFactory.connect(url, username, password);
+                createDatabase();
+
+                // Enable batch writes to get better performance.
+                BatchOptions options = BatchOptions.DEFAULTS.actions(1000).flushDuration(5000).precision(TimeUnit.SECONDS);
+                influxDB.enableBatch(options);
+                batchPoints = BatchPoints.database(database).precision(TimeUnit.SECONDS).build();
+
+                connected = true;
+
+            } catch(Exception e) {
+                sleep(15*1000);
+                if(errors++ > 3) {
+                    log.error("login() error, giving up - " + e.getMessage());
+                    throw new Exception(e);
+                } else {
+                    log.warn("login() error, retrying - " + e.getMessage());
+                }
+            }
+        } while(!connected);
 
-        } catch(Exception e) {
-            log.error("login() error - " + e.getMessage());
-            throw new Exception(e);
-        }
     }
 
 
diff --git a/src/main/java/biz/nellemann/hmci/Insights.java b/src/main/java/biz/nellemann/hmci/Insights.java
index 46c54e5..258796f 100644
--- a/src/main/java/biz/nellemann/hmci/Insights.java
+++ b/src/main/java/biz/nellemann/hmci/Insights.java
@@ -17,7 +17,6 @@ package biz.nellemann.hmci;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -38,11 +37,10 @@ class Insights {
 
     Insights(Configuration configuration) {
         this.configuration = configuration;
-
         try {
             influxClient = new InfluxClient(configuration.influx);
             influxClient.login();
-        } catch(Exception e) {
+        } catch (Exception e) {
             System.exit(1);
         }
 
diff --git a/src/main/resources/simplelogger.properties b/src/main/resources/simplelogger.properties
new file mode 100644
index 0000000..a807e10
--- /dev/null
+++ b/src/main/resources/simplelogger.properties
@@ -0,0 +1,5 @@
+org.slf4j.simpleLogger.logFile=System.out
+org.slf4j.simpleLogger.showDateTime=true
+org.slf4j.simpleLogger.showShortLogName=true
+org.slf4j.simpleLogger.dateTimeFormat=yyyy-MM-dd HH:mm:ss.SSS
+org.slf4j.simpleLogger.levelInBrackets=true